Meanwhile Cheryl shared the snap on Instagram, writing: “This is WHITE AND GOLDDDDD!!!””.

Kim Kardashian West asked: “What color is that dress? I see white & gold. Kanye sees black & blue, who is color blind?”.

The reason behind the optical illusion was later explained. Speaking to Buzzfeed news, Cedar Riener, the associate professor of psychology at Randolph-Macon College, explained: “We are always making decisions about the quantity of light that comes into our retina.”

Named luminance, this light is a combination or how much light is shining onto something we’re looking at, and how much is being reflected off the same object.

He continued: “In the case of the dress, some people are deciding that there is a fair amount of illumination on a blue and black (or less reflective) dress. Other people are deciding that it is less illumination on a white/gold dress (it is in shadow, but more reflective).”

And it’s the exact same thing that’s happening with the trainers. Now we’re just waiting to find out who is right…